# Where is the index stored?

**URL:** https://forum.weaviate.io/t/where-is-the-index-stored/447
**Category:** Support
**Created:** [August 2, 2023, 7:23am UTC](https://forum.weaviate.io/t/where-is-the-index-stored/447 "2023-08-02T07:23:20Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![IvankoPo](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.weaviate.io/ivankopo/32/305_2.png) [@IvankoPo](https://forum.weaviate.io/u/IvankoPo)
#### Post date: [August 2, 2023, 7:23am UTC](https://forum.weaviate.io/t/where-is-the-index-stored/447/1 "2023-08-02T07:23:20Z")

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Where is the index stored ? In RAM, or on disk. What are the requirements for the machine if I am going to store 1 000 000 openAI vectors

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### Author: ![jphwang](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.weaviate.io/jphwang/32/38_2.png) [@jphwang](https://forum.weaviate.io/u/jphwang)
#### Post date: [August 2, 2023, 10:35am UTC](https://forum.weaviate.io/t/where-is-the-index-stored/447/2 "2023-08-02T10:35:15Z")

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Hi @IvankoPo - you can find resource recommendations here: [Resource Planning | Weaviate - vector database](https://weaviate.io/developers/weaviate/concepts/resources)

The indexes are mostly loaded into memory I believe, but can be persisted to disk. Some techniques like PQ ([Vector Indexing | Weaviate - vector database](https://weaviate.io/developers/weaviate/concepts/vector-index#hnsw-with-product-quantizationpq)) allow a mix of disk-stored and memory-loaded indexes for efficiency.

Cheers!